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Full text of "The Flow Of Gases In Furnaces"

MISCELLANEOUS TABLES

187

TABLE 8

VELOCITY OF CONVECTION CURRENTS RESULTING FROM VARIOUS AVERAGE
TEMPERATURE  DIFFERENTIALS ACTING  FOR DIFFERENT HEIGHTS


	Velocity in Feet per Second
			
Temperature
	
			
Difference,
	
	
	
	

Degrees F.
	Height,
	Height,
	Height,
	Height,


	3 Inches
	1 Foot
	10 Feet
	40 Feet

1
	0.1811
	0.3622
	1.145
	2.291

2
	0.2561
	0.5123
	1.620
	3.240

3
	0.3137
	0.6275
	1 . 984
	3.968

5
	0.405
	0.810
	2.561
	5 . 123

10
	0.5727
	1.1455
	3.622
	7.245

20
	0.810
	1.620
	5.123
	10.245

30
	0.992
	1.984
	6.275
	12.55

40
	1 . 1455
	2.291
	7.245
	14.49

50
	1,2808
	2.561
	8.10
	16.20

60
	1.403                 2.806
		8.873
	17.745

70
	1.515
	3.031
	9.582
	19.165

80
	1.620
	3 . 240
	10.245
	20.49

90
	1.718
	3.436
	10.867
	21.735

100
	1.811
	3.622
	11.455
	22.91

150
	2.218
	4.436
	14.03
	28.06

200
	2.561
	5.123
	16.20
	32.40

300
	3.137
	6 . 275
	19.84
	39.68

400
	3.622
	7.245
	22.91
	45.82

500
	4.05
	8.10
	25.61
	51.23

600
	4.436
	8.873
	28.06
	56.12

700
	4.791
	9.582
	30.305
	60.61

800
	5.123
	10.245
	32.40
	64.80

900
	5.434
	10.867
	34.365
	68.73

1000
	5.727
	11.455
	36.225
	72.45

1200
	6.275
	12.55
	39.68
	79.36

1400
	6.776
	13.552
	42.86
	85.72

1600
	7.245
	14.49
	45.82
	91 . 64

1800
	7.684
	15.368
	48.60
	97.20